abstract |
Novel surface active betaines are of formula- R(CH2-CHOH-CH2OH)2-N+-A-Z (I), (where R is a (un)satd. 8-20C, pref. 12-18C aliphatic gp., A is 1-4C alkylene, opt. substd. by OH, and X is sulph(on)ate or carboxylate). (I) are used in low phosphate or phosphate-free washing compsns. and have excellent surface active props. |